Mod 98

Ok, to start off with it is chambered for a 270 win. and im not quite sure what i want to use the gun for im mainly looking target but maybe some day hunting. Im not sure what im looking for as far a good scope, thats why im kinda looking to you guys for guidance

I am also want to add a loop at the front for a bipod, but i might just wait until i make my 30-06 for that.
 
taylorce1 Thank you for the information about re-hardening the 98 mauser when it reaches the 300 H&H, in my great grandfathers collection there is one or two 300 H&H mag and im not sure on if they have been re-hardened so i will send those off before i even think about shooting them. I will be studying anything you guys put up so thank you very much I enjoy learning from all of you!:D
 
If you grandfather's rifle is a Rem 721 or M30 the heat treat on them is plenty capable of handling the .300 H&H. If it is a Mauser action then have it checked out, the rifle may not need the heat treatment. The .300 H&H doesn't run at super high pressures and it is lower than the .264 Win Mag with the cracked bolt that is shown above. You can always check the SAAMI specs if you have any questions about pressure, but realize that some are in PSI and others are CUP which is two different measurements.

Sorry I missed the post where you stated it is a .270 Win with 6 flutes. This is a hunting rifle and not a target rifle, since there aren't a whole lot of good match bullets out there for the .270. I've got both of my .270's scoped with 4-12X40 scopes, one a Redfield Revolution and the other an old Bushnell that came with the rifle. If I were you I'd look at scopes from 3-9, 3.5-10, or 4-12 power ranges, nothing bigger than a 40mm objective.

The loop you talk about is a sling swivel stud. Look for a brand called Uncle Mike's, they are about the most reasonable. B-Square makes a jig to drill the holes for these into your stock to help you get them located in the correct spots. They make one as well to help you D&T the action for scope mounts.
 
Ok, How far out will it hit with accuracy i know there are a bunch of variables but in general whats a good range for the 270.

What are your feelings about Nikon Scopes, I saw they have a manufactures warranty, as i am a little strapped for cash a them minuet I have all my money invested for the moment and dont want to pull it when im making 25% on it.
 
Not trying to get in a you know what contest here. However if gunsmiths like D'Arcy Echols or Saterlee Arms re-heat treat Mauser actions to a higher Rockwell number to build on who am I to argue. Plus heat treating companies like Pac-Met and Blanchards have a good reputation for doing this to the Mauser actions without warping or cracking it.
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Very interesting post and good references.

I know the carbon steels used in Mausers was slightly different from the M1903’s, but I have this data comparing these plain carbon steels used in early 03's and the nickel steel used in later 03 actions. These were early steels and nickel steel is considered an alloy steel.

Looking at data from Matweb, the low carbon steel used in these early 03 receivers is not used for complicated parts, unheated it is used for rebar, if heat treated for medium duty shafts, studs, bolts and nuts. I did a composition search and found AISI 1117-1118 steel is similar in composition to Springfield Class C steel. For 1 inch round AISI 1118 mock carburized, reheated to 1450 F, quenched, tempered. This is similar to the double heat treatment. The Ultimate strength is 103,000 psi, yield 59,300 psi, elongation at break 19%. For something similar to WD2340 Nickel steel, I found one inch round AISI 4820. For that material, mock carburized, 1450 F reheat, water quench, the ultimate strength was 163,000 psi and the yield strength was 120,000 psi, elongation at break 15%.

Today’s receivers are usually made of 4140. For a 1 in round AISI 4140 Steel, normalized at 870°C (1600°F), reheated to 845°C (1550°F), oil quenched, 260°C (500°F) temper, ultimate strength 270,000 psi, yield 240,000 psi, elongation at break 11%

You can see just from a materials standpoint, modern receivers gain a lot from modern alloy steels. The yield strength, something you always want to be below, for plain carbon steel is 103Kpsi and for 4140 it is 240 Kpsi.

A good heat treatment with additional case on the wear surfaces will probably improve an older receiver but no matter how good the heat treat of plain carbon steel it will never equal the properties of a good alloy steel.
 
Ok, the can some one show me a link on how to finish the barrel or give me some information about it? Birchwood Casey Super Blue Cold is this stuff any good or do you guys have any input on finishing the barrel.

I think i decided to go with the Redfield scope.
 
Ok, How far out will it hit with accuracy i know there are a bunch of variables but in general whats a good range for the 270.
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Hunting maximum distances are usually 300yds no matter what cartridge. For a skilled shooter the .270 will take game at 600yds. Targets depend on the rifle and the shooter. 1000yds targets are within the possible range of the .270.

Birchwood Casey Super Blue Cold is this stuff any good or do you guys have any input on finishing the barrel.
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I've seen quite a few poorly done home blued guns and few well done ones. If you can afford it get the gun professionally refinished.
 
Slamfire, I can't reconcile these 2 statements, did I miss something?

ISI 1118 mock carburized, reheated to 1450 F, quenched, tempered. This is similar to the double heat treatment. The Ultimate strength is 103,000 psi, yield 59,300 psi,
Click to expand...

The yield strength, something you always want to be below, for plain carbon steel is 103Kpsi and for 4140 it is 240 Kpsi
Click to expand...
 
"How to blue a rifle." Youtube has some pretty good video's on how to blue a rifle, the one I posted is from MidwayUSA. I like Larry Potterfield's videos, some of it is beyond what I can do in my garage but a lot of it is pretty simple and easy to follow.

I really like the Redfield scope, and I think it will be a good choice for your application. Get the 3-9X40 or 4-12X40 and I think you'll be happy with it on a .270. I'd just get the standard duplex reticle as well to start with, I've got an Accurange reticle in one of my scopes and I don't really care for it. It just looks a little too busy for my tastes.

As far as accuracy, my .270's have been some of the most accurate rifles I've owned outside of my varmint rifles. Of course a lot of this accuracy has to do with how the rifle is built, and the load used regardless if it is a factory cartridge or your own hand load. Then you have to be accurate with this rifle as well. If you can't shoot accurately it doesn't matter how well the rifle is made, nor the ammunition used.

Work on 100 yards first and when you can shoot accurately at that range move out, shooting 200+ yards for groups can be a humbling experience. Don't expect you and your rifle to be shooting tiny groups right away, if it shoots 1.5" or less for 3-5 shots that is great accuracy for a hunting rifle, and will keep you in the kill zone of a deer out to 300 yards.
 
I also like the midway USA videos and watched a few of them last night. The blue process on the video doesn't look that bad and i have been operating lathes since i was 12 so the polishing of the barrel i could take a nap doing (normaly run bearing fits of .001") I also read some where that Redfield was bought by Leupold. My main concern is the rings being tall enough.

here is the scope I think i will order.
http://www.midwayusa.com/viewproduc...- 12X and Greater-_-PriceCompListing-_-210848

base mount
http://www.midwayusa.com/viewProduct/?productNumber=575356?cm_cat=Cart&cm_pla=ProductDesc

and rings
http://www.midwayusa.com/viewProduct/?productNumber=435060?cm_cat=Cart&cm_pla=ProductDesc
 
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Slamfire, I can't reconcile these 2 statements, did I miss something?


ISI 1118 mock carburized, reheated to 1450 F, quenched, tempered. This is similar to the double heat treatment. The Ultimate strength is 103,000 psi, yield 59,300 psi
Click to expand...
,

The yield strength, something you always want to be below, for plain carbon steel is 103Kpsi and for 4140 it is 240 Kpsi
Click to expand...
Click to expand...

Major error!

Yeild for plain carbon steel 59 Kpsia not 103 Kpsia.

I hope that is the only screw up I made, too many numbers to keep straight. :o
 
I think your rings will be too tall if you use the one you linked. 40mm objective scopes are usually medium rings and sometimes you can get by with short rings. The scope you picked out has a 46mm objective bell, so you will need something that will have the centerline of the scope a little taller than 23mm. What you don't want to do is get the scope so high above the barrel that you can't get a comfortable cheekweld for shooting unless you have an adjustable cheek rest.
 
Slamfire, I've got 2 Brazilian Mod. 08/34.30 actions begging to be used. What would be safe to do without heat treating?. 30-06 class? Is it safe to keep them at anything that would use the same case head size? Would a 300 Win Mag be pushing it?

I'm a recoil wuss, so I was leaning towards 1 in 6.5x55 or 57 and the other some sort of .22 or .24, but it would be nice to know whereabout the line is that I don't want to cross.
 
Can a bi-pod be attached where the sling goes even it if doesn't have the nut on the back side if its just the screw in sling swivel mount?
 
Slamfire, I've got 2 Brazilian Mod. 08/34.30 actions begging to be used. What would be safe to do without heat treating?. 30-06 class? Is it safe to keep them at anything that would use the same case head size? Would a 300 Win Mag be pushing it?

I'm a recoil wuss, so I was leaning towards 1 in 6.5x55 or 57 and the other some sort of .22 or .24, but it would be nice to know whereabout the line is that I don't want to cross.
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If these are original M1908 rifles converted to a different caliber in the 30's, then these would be safe in the original 7mm Mauser loads from 1900. Which I suspect are 40,000 lb loads.

The bottom line is not to use loads which develop pressures above that which the action was designed or issued.

A similiar question was asked here:

http://www.firearmstalk.com/forums/f37/how-strong-action-chamber-brazilian-30-06-mausers-23817/

I have a Brazilian 98 made by CZ in the 30's. The metal should be better than one made in the early 1900's.

If you have one of those, keeping your 30-06 loads to the pressures of WWII US ammo, that is nothing above 50 K psia, you should be just fine. If you start pushing loads to 60 Kpsia, which are modern 30-06 loads, that would be too hot.

I have a 30-06 target rifle built around a 1950's Colombian M98 R Famas action. It has gone through one barrel and the long range loads are hot. No problems with that action other than the case hardening in the bolt cocking cam wore out through too much use. Had to replace the bolt on the second barrel.
 
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